Here's just a few. Rom 15:30
2Thess 1:11 & 3:1
Eph 6:18
Mk 12:25 & Mt. 22:30
Rev 5:8
2nd thes 1:11 Wherefore also we pray always for you, that our God would count you worthy of this calling, and fulfil all the good pleasure of his goodness, and the work of faith with power:
In each verse citing they are praying to God not to Mary or dead saints. No where does it say that we are to ask any dead person for special treatment from God.